US 11,911,546 B2
System for removing uremic toxins in dialysis processes
Sujatha Karoor, Lake Forest, IL (US)
Assigned to Baxter International Inc., Deerfield, IL (US); and Baxter Healthcare SA, Glattpark (CH)
Filed by Baxter International Inc., Deerfield, IL (US); and Baxter Healthcare SA, Glattpark (CH)
Filed on Jan. 7, 2022, as Appl. No. 17/570,906.
Application 16/134,439 is a division of application No. 14/989,239, filed on Jan. 6, 2016, granted, now 10,112,001, issued on Oct. 30, 2018.
Application 17/570,906 is a continuation of application No. 16/661,613, filed on Oct. 23, 2019, granted, now 11,224,683.
Application 16/661,613 is a continuation of application No. 16/366,195, filed on Mar. 27, 2019, granted, now 10,493,193, issued on Dec. 3, 2019.
Application 16/366,195 is a continuation of application No. 16/134,439, filed on Sep. 18, 2018, granted, now 10,272,189, issued on Apr. 30, 2019.
Application 14/989,239 is a continuation of application No. 13/745,388, filed on Jan. 18, 2013, granted, now 9,242,035, issued on Jan. 26, 2016.
Claims priority of provisional application 61/588,479, filed on Jan. 19, 2012.
Prior Publication US 2022/0126004 A1, Apr. 28, 2022
Int. Cl. A61M 1/16 (2006.01); A61M 1/14 (2006.01); A61M 1/26 (2006.01); A61M 1/28 (2006.01); A61M 1/36 (2006.01); B01J 20/02 (2006.01); B01J 20/06 (2006.01); B01J 20/20 (2006.01); B01J 20/28 (2006.01); B01J 20/24 (2006.01)
CPC A61M 1/1696 (2013.01) [A61M 1/14 (2013.01); A61M 1/1694 (2013.01); A61M 1/267 (2014.02); A61M 1/28 (2013.01); A61M 1/284 (2014.02); A61M 1/287 (2013.01); A61M 1/3679 (2013.01); A61M 1/3687 (2013.01); B01J 20/0292 (2013.01); B01J 20/06 (2013.01); B01J 20/20 (2013.01); B01J 20/24 (2013.01); B01J 20/28052 (2013.01); A61M 2209/088 (2013.01); B01J 2220/62 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method of performing dialysis comprising:
recirculating a dialysis fluid from a patient or a dialyzer for at least two cycles, each cycle contacting the dialysis fluid first with a zirconium phosphate layer followed by at least one of a urease layer, a zirconium oxide layer, or a carbon layer, wherein the at least two cycles include a cleaning cycle and a storing cycle, and the method includes operating valves to alternate between the cleaning cycle and the storing cycle;
storing the recirculated dialysis fluid in a storage container; and
transferring the dialysis fluid from the storage container to the patient or the dialyzer.